5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.9 Medium
AI Score
Confidence
High
0.024 Low
EPSS
Percentile
89.9%
The remote host is missing an update for the
# SPDX-FileCopyrightText: 2021 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.1.4.2018.3776.1");
script_cve_id("CVE-2018-15473", "CVE-2018-15919");
script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
script_version("2024-02-02T14:37:50+0000");
script_tag(name:"last_modification", value:"2024-02-02 14:37:50 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"5.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2018-11-07 16:04:30 +0000 (Wed, 07 Nov 2018)");
script_name("SUSE: Security Advisory (SUSE-SU-2018:3776-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone AG");
script_family("SuSE Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/suse_sles", "ssh/login/rpms", re:"ssh/login/release=(SLES12\.0|SLES12\.0SP1)");
script_xref(name:"Advisory-ID", value:"SUSE-SU-2018:3776-1");
script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2018/suse-su-20183776-1/");
script_tag(name:"summary", value:"The remote host is missing an update for the 'openssh' package(s) announced via the SUSE-SU-2018:3776-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"This update for openssh fixes the following issues:
Following security issues have been fixed:
CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH
could be used by remote attackers to detect existence of users on a
target system when GSS2 is in use. OpenSSH developers do not want to
treat such a username enumeration (or 'oracle') as a vulnerability.
(bsc#1106163)
CVE-2018-15473: OpenSSH was prone to a user existance oracle
vulnerability due to not delaying bailout for an invalid authenticating
user until after the packet containing the request has been fully
parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
(bsc#1105010)
Also the following security related hardening change was done:
Remove arcfour,cast,blowfish from list of default ciphers. (bsc#982273)
And the following non-security issues were fixed:
Stop leaking File descriptors (bsc#964336)
sftp-client.c returns wrong error code upon failure (bsc#1091396)");
script_tag(name:"affected", value:"'openssh' package(s) on SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 12-SP1.");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"package");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "SLES12.0") {
if(!isnull(res = isrpmvuln(pkg:"openssh", rpm:"openssh~6.6p1~54.18.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-askpass-gnome", rpm:"openssh-askpass-gnome~6.6p1~54.18.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-askpass-gnome-debuginfo", rpm:"openssh-askpass-gnome-debuginfo~6.6p1~54.18.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-debuginfo", rpm:"openssh-debuginfo~6.6p1~54.18.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-debugsource", rpm:"openssh-debugsource~6.6p1~54.18.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-fips", rpm:"openssh-fips~6.6p1~54.18.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-helpers", rpm:"openssh-helpers~6.6p1~54.18.1", rls:"SLES12.0"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-helpers-debuginfo", rpm:"openssh-helpers-debuginfo~6.6p1~54.18.1", rls:"SLES12.0"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "SLES12.0SP1") {
if(!isnull(res = isrpmvuln(pkg:"openssh", rpm:"openssh~6.6p1~54.18.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-askpass-gnome", rpm:"openssh-askpass-gnome~6.6p1~54.18.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-askpass-gnome-debuginfo", rpm:"openssh-askpass-gnome-debuginfo~6.6p1~54.18.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-debuginfo", rpm:"openssh-debuginfo~6.6p1~54.18.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-debugsource", rpm:"openssh-debugsource~6.6p1~54.18.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-fips", rpm:"openssh-fips~6.6p1~54.18.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-helpers", rpm:"openssh-helpers~6.6p1~54.18.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"openssh-helpers-debuginfo", rpm:"openssh-helpers-debuginfo~6.6p1~54.18.1", rls:"SLES12.0SP1"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.9 Medium
AI Score
Confidence
High
0.024 Low
EPSS
Percentile
89.9%